Home / 30,204.28-45,313.51-9,144.48

Finding the Fourth Proportional to 30,204.28, 45,313.51 and 9,144.48

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Solution

The fourth proportional to 30,204.28, 45,313.51 and 9,144.48 is: 13,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.28 : 45,313.51 = 9,144.48 : x
  2. Step 2: Convert to fraction form
    30,204.28/45,313.51 = 9,144.48/x
  3. Step 3: Cross multiply
    30,204.28x = 45,313.51 × 9,144.48
  4. Step 4: Simplify right side
    30,204.28x = 414,368,440.20
  5. Step 5: Solve for x
    x = 414,368,440.20/30,204.28
  6. Step 6: Final answer
    x = 13,718.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.